nanog mailing list archives

Re: test-ipv6.com


From: Kevin Stange <kevin () steadfast net>
Date: Fri, 28 Jan 2011 02:39:54 -0600

On 01/27/2011 06:16 PM, Mark Andrews wrote:
In message <alpine.BSF.2.00.1101271448000.15852 () goat gigo com>, Jason Fesler wr
ites:
Several people have suggested I (re)post information about test-ipv6.com 
here.

http://test-ipv6.com  ..
   tests ipv4 and ipv6 by dns name
   tests dual stack (will the client break on World IPv6 Day?)
   tests ipv6 by IP literal (teredo can pass this)
   gives advice to end user about current status and (depending on
     circumstances) more information
   "broken" users (can't connect to dual stack) are solicited for info
   Caution: does depend on javascript.

http://test-ipv6.com/simple_test.html
   Eyeball test only for user, with instructions; no javascript required.

Please direct any comments, flames, etc directly to me instead of the 
list.  I've added enough noise already  :-)

Note you can have totally broken IPv6 connectivity and still be
fine on World IPv6 day.  You just need applications with good
multi-homing support.  No web site can check this for you.

However, by coincidence, this week I happened to be playing with the
site and it revealed to me a particular use case of my DNS resolvers
that was broken and gave me a chance to fix it.

I don't think there's any harm in some baseline sanity checking.

-- 
Kevin Stange
Chief Technology Officer
Steadfast Networks
http://steadfast.net

Phone: 312-602-2689 x203
Fax:   312-602-2688
Cell:  312-320-5867

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